People wearing face masks walk under fluttering Koinobori, traditional Japanese carp-shaped windsocks that are hung in Japan from April to early May to wish a good health for children, following the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan, April 24, 2020. REUTERS/Kim Kyung-Hoon

People wearing face masks walk under fluttering Koinobori, traditional Japanese carp-shaped windsocks that are hung in Japan from April to early May to wish a good health for children, following the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan, April 24, 2020. REUTERS/Kim Kyung-Hoon TPX IMAGES OF THE DAY

People wearing face masks walk under fluttering Koinobori, traditional Japanese carp-shaped windsocks that are hung in Japan from April to early May to wish a good health for children, following the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan, April 24, 2020. REUTERS/Kim Kyung-Hoon

Extra bows are seen on Captain Nate Wallick's boat during a hunt for Asian carp with bow and arrow on...

Extra bows are seen on Captain Nate Wallick's boat during a hunt for Asian carp with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

RTX73RAD

September 20, 2019

A caught carp is seen on a boat during a hunt for Asian carp with bow and arrow on the Illinois River...

Captain Nate Wallick, of Peoria Carp Hunters, out on the Illinois River hunting the invasive species...

A caught carp is seen on a boat during a hunt for Asian carp with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

RTX73R9Y

September 20, 2019

An arrow flies at a midair next to an Asian carp, as a group goes out hunting with bow and arrow on the...

Captain Nate Wallick, of Peoria Carp Hunters, out on the Illinois River hunting the invasive species...

An arrow flies at a midair next to an Asian carp, as a group goes out hunting with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

Dan Steenwyk, 29, an HVAC technician from Hudson, Michigan, lines up a shot while hunting Asian carp with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

RTX73R9U

September 20, 2019

Zach VandeVusse, 23, an electrician from Hamilton, Michigan, eyes the water for leaping fish while out...

Zach VandeVusse, 23, an electrician from Hamilton, Michigan, eyes the water for leaping fish while out...

Zach VandeVusse, 23, an electrician from Hamilton, Michigan, eyes the water for leaping fish while out hunting Asian carp with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

RTX73R9S

September 20, 2019

Captain Nate Wallick, of Peoria Carp Hunters, goes out hunting Asian carp with bow and arrow on the Illinois...

Captain Nate Wallick, of Peoria Carp Hunters, out on the Illinois River hunting the invasive species...

Captain Nate Wallick, of Peoria Carp Hunters, goes out hunting Asian carp with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

RTX73R9P

September 20, 2019

Captain Nate Wallick's clients, six regulars of his from Michigan, disembark after a six-hour day out...

Captain Nate Wallick's clients, six regulars of his from Michigan, disembark after a six-hour day out...

Captain Nate Wallick's clients, six regulars of his from Michigan, disembark after a six-hour day out hunting Asian carp with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

RTX73R9O

September 20, 2019

A skewered fish is pulled into Captain Nate Wallick's boat on the Illinois River where six regular clients...

A skewered fish is pulled into Captain Nate Wallick's boat on the Illinois River where six regular clients...

A skewered fish is pulled into Captain Nate Wallick's boat on the Illinois River where six regular clients from Michigan went out hunting Asian carp with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

RTX73R9M

September 20, 2019

Zach VandeVusse, 23, an electrician from Hamilton Michigan, lines up a shot on Captain Nate Wallick's...

Zach VandeVusse, 23, an electrician from Hamilton Michigan, lines up a shot on Captain Nate Wallick's...

Zach VandeVusse, 23, an electrician from Hamilton Michigan, lines up a shot on Captain Nate Wallick's boat while out hunting Asian carp with bow and arrow, on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

RTX73R9J

September 20, 2019

Asian carps jump on the surface of Illinois River due to the vibrations of Captain Nate Wallick's aluminium...

Captain Nate Wallick, of Peoria Carp Hunters, out on the Illinois River hunting the invasive species...

Asian carps jump on the surface of Illinois River due to the vibrations of Captain Nate Wallick's aluminium boat, during a hunt for Asian carp with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

RTX73R9H

September 20, 2019

Fish guts are seen on the floor of Captain Nate Wallick's boat while they hunt Asian carp with bow and...

Fish guts are seen on the floor of Captain Nate Wallick's boat while they hunt Asian carp with bow and...

Fish guts are seen on the floor of Captain Nate Wallick's boat while they hunt Asian carp with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

Captain Nate Wallick of Peoria Carp Hunters examines a skewered carp while out hunting Asian carp with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

RTX73R99

September 20, 2019

Hunter Vanderkooi, 21, a tree service owner, from Muskegon, Michigan, aims at a leaping carp as his father,...

Captain Nate Wallick, of Peoria Carp Hunters, out on the Illinois River hunting the invasive species...

Hunter Vanderkooi, 21, a tree service owner, from Muskegon, Michigan, aims at a leaping carp as his father, Matt Vanderkooi, 48, an automotive project coordinator, looks on, from Captain Nate Wallick's boat during a hunt for Asian carp with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

RTX73R98

September 20, 2019

Steve Tubergen, 40, a residential builder from Hamilton, Michigan, fires into the water while out with...

Steve Tubergen, 40, a residential buiilder from Hamilton, Michigan, fires into the water while out with...

Steve Tubergen, 40, a residential builder from Hamilton, Michigan, fires into the water while out with the Peoria Carp Hunters, hunting Asian carp with bow and arrow on the Illinois River near Lacon, Illinois, U.S., September 14, 2019. Picture taken September 14, 2019. REUTERS/Nicholas Pfosi

Carp is seen in aquarium during international exhibition 'Belagro 2019' on the outskirts of Minsk

A carp is seen in aquarium during international exhibition of agricultural machinery, equipment, livestock and poultry 'Belagro 2019' on the outskirts of Minsk, Belarus June 4, 2019. REUTERS/Vasily Fedosenko

RTX6XVKW

June 04, 2019

A carp is seen in an aquarium during international exhibition of agricultural machinery, equipment, livestock...

Carp is seen in an aquarium during international exhibition 'Belagro 2019' on the outskirts of Minsk

A carp is seen in an aquarium during international exhibition of agricultural machinery, equipment, livestock and poultry 'Belagro 2019' on the outskirts of Minsk, Belarus June 4, 2019. REUTERS/Vasily Fedosenko

RTX6WOP4

May 27, 2019

U.S. first lady Melania Trump and Akie Abe, wife of Japanese Prime Minister Shinzo Abe wave while viewing...

U.S. first lady Melania Trump and Akie Abe, wife of Japanese Prime Minister Shinzo Abe wave while viewing...

U.S. first lady Melania Trump and Akie Abe, wife of Japanese Prime Minister Shinzo Abe wave while viewing the koi carp pond at Akasaka State Guest House in Tokyo, Japan May 27, 2019. REUTERS/Athit Perawongmetha

RTX6WOP3

May 27, 2019

U.S. first lady Melania Trump and Akie Abe, wife of Japanese Prime Minister Shinzo Abe view the koi carp...

U.S. first lady Melania Trump and Akie Abe, wife of Japanese Prime Minister Shinzo Abe wave while viewing...

U.S. first lady Melania Trump and Akie Abe, wife of Japanese Prime Minister Shinzo Abe wave while viewing the koi carp pond at Akasaka State Guest House in Tokyo, Japan May 27, 2019. REUTERS/Athit Perawongmetha

RTX6WOOY

May 27, 2019

U.S. first lady Melania Trump and Akie Abe, wife of Japanese Prime Minister Shinzo Abe view the koi carp...

U.S. first lady Melania Trump and Akie Abe, wife of Japanese Prime Minister Shinzo Abe wave while viewing...

U.S. first lady Melania Trump and Akie Abe, wife of Japanese Prime Minister Shinzo Abe wave while viewing the koi carp pond at Akasaka State Guest House in Tokyo, Japan May 27, 2019. REUTERS/Athit Perawongmetha

RTX6WOO9

May 27, 2019

U.S. first lady Melania Trump and Akie Abe, wife of Japanese Prime Minister Shinzo Abe view the koi carp...

An employee carries a carp at a fish farm, which is located near a local power plant warming up water in the surrounding area, outside the Siberian town of Nazarovo west of Krasnoyarsk, Russia February 12, 2019. REUTERS/Ilya Naymushin

RTX6MENJ

February 12, 2019

An employee holds a Japanese carp, also known as Koi, while demonstrating it to customers at a fish farm,...

An employee holds a Japanese carp, also known as Koi, while demonstrating it to customers at a fish farm, which is located near a local power plant warming up water in the surrounding area, outside the Siberian town of Nazarovo west of Krasnoyarsk, Russia February 12, 2019. REUTERS/Ilya Naymushin

RTX6MEMV

February 12, 2019

A view shows Japanese carps, also known as Koi, at a fish farm, which is located near a local power plant...

A view shows Japanese carps, also known as Koi, at a fish farm, which is located near a local power plant warming up water in the surrounding area, outside the Siberian town of Nazarovo west of Krasnoyarsk, Russia February 12, 2019. REUTERS/Ilya Naymushin

RTX6MELW

February 12, 2019

Employees use a net while lifting Japanese carps, also known as Koi, at a fish farm, which is located...

Employees use a net while lifting Japanese carps, also known as Koi, at a fish farm, which is located near a local power plant warming up water in the surrounding area, outside the Siberian town of Nazarovo west of Krasnoyarsk, Russia February 12, 2019. REUTERS/Ilya Naymushin

RTX6MEK4

February 12, 2019

Employees use a net while lifting Japanese carps, also known as Koi, at a fish farm, which is located...

Employees use a net while lifting Japanese carps, also known as Koi, at a fish farm, which is located on a lake near a local power plant warming up water in the surrounding area, outside the Siberian town of Nazarovo west of Krasnoyarsk, Russia February 12, 2019. REUTERS/Ilya Naymushin